Home / 18,681.98-25,778.45-11,605.82

Finding the Fourth Proportional to 18,681.98, 25,778.45 and 11,605.82

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Solution

The fourth proportional to 18,681.98, 25,778.45 and 11,605.82 is: 16,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.98 : 25,778.45 = 11,605.82 : x
  2. Step 2: Convert to fraction form
    18,681.98/25,778.45 = 11,605.82/x
  3. Step 3: Cross multiply
    18,681.98x = 25,778.45 × 11,605.82
  4. Step 4: Simplify right side
    18,681.98x = 299,179,950.70
  5. Step 5: Solve for x
    x = 299,179,950.70/18,681.98
  6. Step 6: Final answer
    x = 16,014.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.